var xmlHttp;

function GetXmlHttpObject() {
	var xmlHttp = null;

	try {
		// Firefox, Opera 8.0+, Safari
		xmlHttp = new XMLHttpRequest();
	} catch (e) {
		// Internet Explorer
		try {
			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}

function redirectPage(url, source, p_id) {
	xmlHttp = GetXmlHttpObject();

	if (xmlHttp == null) {
		alert("Browser does not support HTTP Request");
		return false;
	}

	var url;
    url = 'pdf_redirect.php?url=' + url + '&p_id=' + p_id + '&src=' + source;
    url = url + "&sid=" + Math.random();

	xmlHttp.onreadystatechange = toggleStateChanged;
	xmlHttp.open("GET", url, true);
	xmlHttp.send(null);
}

function toggleStateChanged() {
	var done = true;
}